SecondFloor vs Chief As
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SecondFloor
Instantly create detailed floor plans by scanning interiors with LiDAR. AI automatically detects walls, windows, and doors, with real-time feedback and easy on-device editing. Share finished plans directly from the app.
- Instant floor plans with LiDAR
- AI detection of walls, windows, doors
- Real-time scanning feedback
- On-device editing
- Built-in sharing
- GLA Square Footage/Meters
- Custom room labels
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SecondFloor is the fastest way to create a finished floor plan. Scan the interior of a home using LiDAR and instantly receive a floor plan. SecondFloor uses AI to automatically detect walls, windows, doors, and more while providing you with real time feedback to your scanning progress. Quickly edit each floor plan from within the app. Built in sharing allows you to share finished floor plans while still on-site. SecondFloor requires a paid subscription and a LiDAR equipped device. Features: • Instant floor plans • GLA Square Footage/Square Meters • Individual room measurements • AI detects and places fixed furniture • Guided scanning instructions • Custom Room labels • LiDAR accurate dimensions • Easily edit on device • Secure on device processing • Built in sharing • Unlimited floor plan scanning • Simple upfront pricing • No internet required for use • Integrated instructions for use • Integrated support features Localized Features: • Metric & Imperial room measurements & area calculations (System Measurement Preference) • Single digit decimal room measurement precision for Australia & New Zealand (System Region) • Regional room label presets (System Language) • Minimum stair tread sized to regional building codes (System Region) Supported Languages: • English - US • English - UK • English - Canada • English - Australia • English - New Zealand • Dutch • French - Canada • French - France • Finnish • German • Hindi • Italian • Portuguese - Brazil • Spanish - Spain • Spanish - Latin American Terms & Conditions: Your use of this application is governed by the SecondFloor Terms and Conditions (http://secondfloorapp.com/terms-and-conditions/) and the SecondFloor Privacy Policy (http://secondfloorapp.com/privacy-policy/)
Chief As
Easily capture 3D floor plans of rooms using your iPhone or iPad's LiDAR scanner. Edit and import these models directly into desktop design software for remodeling projects. Streamline documentation of existing spaces and client collaboration.
- 3D floor plan capture via LiDAR
- In-app 3D model editing
- Import to Chief Architect desktop software
- Client room scanning capability
- Precise measurement tools
- Cloud sharing
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Capture 3D floor plans of rooms by scanning or drawing on your iPhone or iPad. Make edits and import them directly into Chief Architect’s desktop software to begin remodeling. The As-Built app helps you quickly document existing room conditions. Even your clients can scan their rooms for you, saving you time. Remodeling has never been easier! The As-Built app uses the built-in LiDAR sensors on your iPhone or iPad to create a 3D model of your space. As you point your device around the room, moving up and down, you see the 3D model take shape. LiDAR (Light Detection and Ranging) uses pulsed lasers to measure distances and generate 3D models. Once the scan is complete, you can view the result in 3D and further edit it, for example, by entering exact dimensions from the screen or using a connected Bluetooth laser for precise measurements. There are also tools to add text notes and room and wall tools to refine the space. When you’re done, share the model in the cloud and access it with Chief Architect’s desktop design software to begin the remodel process.
Screenshots
Verdict
The clearest difference is rating: SecondFloor at 4.3 against Chief As's 3.6. SecondFloor also leads on update cadence (fortnightly vs every 6 weeks) and ratings volume (16 vs 5). Chief As's advantage is in-app purchases (none vs 4). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SecondFloor sells 4 in-app purchases, starting at $24.99 per 7 days. Chief As asks for nothing beyond the download.
SecondFloor holds the better App Store score, 4.3 against 3.6. Both are backed by a comparable volume of ratings — 16 and 5 respectively.
SecondFloor ships an update fortnightly, Chief As every 6 weeks. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.
| Parameter | SecondFloor | Chief As |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (16 ratings) — better | 3.6 (5 ratings) |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 16 — better | 5 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 120 MB | 156 MB |
| Age rating | 4+ | 4+ |
| Developer | Right Home Media Inc. | Chief Architect |
Customer experience
SecondFloor
Chief As
In-app purchases
SecondFloor
- Weekly Subscription7 Days trial$24.997 Days
- Monthly Subscription7 Days trial$49.991 Month
- Yearly Subscription7 Days trial$249.991 Year
- Day Pass$9.99
Chief As
No in-app purchases








